Cooling Operation; Fan Only Operation - Toshiba RAS-07SKHP-E Service Manual

(3) The indoor heat exchanger restricts revolving
speed of the fan motor to prevent a cold draft. The
upper limit of the revolving speed is shown in
Fig. 7-3-10 and Table 7-3-2.
Tc
46 46 34
45 45 33
33 33 21
32 32 20
*A+4 *A+4 *A+4
*A-4 *A-4 *A-4
Fan speed MANUAL in starting
Fan speed AUTO in stability
Fan speed AUTO in starting
* No limitation while fan speed MANUAL mode is in stability.
* A: When Tsc ≥ 24, A is 24, and when Tsc < 24, A is Tsc
Tsc: Set value
Fig. 7-3-10 Cold draft preventing control
Table 7-3-2
Fan *5
speed Starting period
• Up until 12 minutes
AUTO
passed after starting
the unit
• From 12 to 25 minutes
passed after starting
the unit and room
temperature is 3°C
lower than preset
temperature
• Room temperature
Manual
(L – H) < Preset temperature
H (WE)
Line-approximate
H and SUL with Tc.
SUL (W2)
Stop
*6
Stabilized period
• From 12 to 25 minutes
passed after starting
the unit and room
temperature is
between preset
temperature and 3°C
lower than preset
temperature
• 25 minutes or more
passed after starting
the unit
• Room temperature
Preset temperature
–3.5°C
–4°C
7-3-5. Automatic operation
([MODE] button on the remote control is set
to the automatic operation.)
(1) One of 3 operations (Cooling, Fan only or Heating)
is selected according to difference between the
preset temperature and the room temperature at
which the automatic operation has started, as
shown in Fig. 7-3-11. The Fan only operation
continues until the room temperature reaches a
level at which another mode is selected.
(2) Temporary Auto
When the RESET button on the indoor unit
is pushed, the preset temperature is fixed at 24°C
and the indoor unit is controlled as shown in
Fig. 7-3-11.
°C

Cooling operation

0

Fan only operation

-1
Heating operation
−19 −
FILE NO. SVM-07023
Fig. 7-3-11